2015-07-28 11:12:00 +08:00
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# RUN: yaml2obj < %p/Inputs/hello32.yaml > %t.obj
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[COFF] Implement /safeseh:no and check @feat.00 flags by default
Summary:
Fixes PR41828. Before this, LLD always emitted SafeSEH chunks and
defined __safe_se_handler_table & size. Now, /safeseh:no leaves those
undefined.
Additionally, we were checking for the safeseh @feat.00 flag in two
places: once to emit errors, and once during safeseh table construction.
The error was set up to be off by default, but safeseh is supposed to be
on by default. I combined the two checks, so now LLD emits an error if
an input object lacks @feat.00 and safeseh is enabled. This caused the
majority of 32-bit LLD tests to fail, since many test input object files
lack @feat.00 symbols. I explicitly added -safeseh:no to those tests to
preserve behavior.
Finally, LLD no longer sets IMAGE_DLL_CHARACTERISTICS_NO_SEH if any
input file wasn't compiled for safeseh.
Reviewers: mstorsjo, ruiu, thakis
Reviewed By: ruiu, thakis
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D63570
llvm-svn: 366238
2019-07-17 02:17:33 +08:00
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# RUN: lld-link -safeseh:no %t.obj %p/Inputs/std32.lib /subsystem:console \
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2015-07-28 11:12:00 +08:00
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# RUN: /entry:main@0 /out:%t.exe /largeaddressaware
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2019-05-01 13:49:01 +08:00
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# RUN: llvm-readobj --file-headers %t.exe | FileCheck -check-prefix=HEADER %s
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2015-07-28 11:12:00 +08:00
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HEADER: Format: COFF-i386
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HEADER-NEXT: Arch: i386
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HEADER-NEXT: AddressSize: 32bit
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HEADER-NEXT: ImageFileHeader {
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HEADER-NEXT: Machine: IMAGE_FILE_MACHINE_I386 (0x14C)
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HEADER-NEXT: SectionCount: 4
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2018-03-09 03:33:47 +08:00
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HEADER-NEXT: TimeDateStamp:
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2015-07-28 11:12:00 +08:00
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HEADER-NEXT: PointerToSymbolTable: 0x0
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HEADER-NEXT: SymbolCount: 0
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HEADER-NEXT: OptionalHeaderSize: 224
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HEADER-NEXT: Characteristics [ (0x122)
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HEADER-NEXT: IMAGE_FILE_32BIT_MACHINE (0x100)
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HEADER-NEXT: IMAGE_FILE_EXECUTABLE_IMAGE (0x2)
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HEADER-NEXT: IMAGE_FILE_LARGE_ADDRESS_AWARE (0x20)
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HEADER-NEXT: ]
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HEADER-NEXT: }
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